Defined by its purpose, its [education's] main aim is not to impart the specialized technique of any particular trade or profession, but to develop the faculties which, because they are the attribute of man, are not peculiar to any particular class or profession of men, and to build up the interests which, while they may become the basis of specialization at a later stage, have a value extending beyond their utility for any particular vocation, because they are the condition of a rational and responsible life in society.